{"id": 4009, "prediction_verbatim": "USD weaker against EUR in 48h", "created_at": "2026-04-25 19:39:45", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-27 19:40:18", "chain_hash": "e92441696e7135b438d960ea8c25e3812f6932b38e3dc57af7ed916ed2f928cc", "chain_tx": "2NbYrL3hAjSdHqEJwwdV57iLGQxf22Cbd4QMhNhfQN3hitxEEyqSe6jpZYPrNsnaBsdPqqyNwPPXvfQn7rezdAYr", "verify": "sha256(f'{prediction_verbatim}|{created_at}|{id}') must equal chain_hash, and the Solana tx memo must read 'workshop:pred:<id>:<chain_hash>' with a timestamp BEFORE resolved_at. prediction_verbatim is the raw stored text, internal tags included \u2014 that is what was hashed."}